Meet Nguyen Thi Phuong Thao, Vietnam’s first female self-made billionaire. Much of her net worth comes from her company VietJet Air, which on its website calls itself a “dynamic, innovative airline.” But some might have other words for what it is her company is doing. Indeed, VietJet isn’t known so much for its CEO as it is its bikinied flight attendants. It’s a uniform Thao insists is empowering for women in such a conservative country.